Remaining at Karacahisar
· Karacahisar Castle, Odunpazarı, Eskişehir Province, Türkiye

Wikimedia Commons · CC BY-SA 3.0 · file As his son Orhan conducted a further fortress campaign, Osman remained at Karacahisar, reportedly because of the risk of a Tatar attack and/or his age and illness. The source gives alternative reasons for his remaining at Karacahisar, but directly states his presence there.